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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » Aluminum I Beam » 3.00 × 2.030
Aluminum I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in four equal spans, we compute the displacement at the middle of the first and fourth spans, and the maximum normal stress occuring at the second and fourth supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 2.71 in4) for the 3.00 × 2.030 Aluminum I Beam and the typical Young's modulus (E = 1.015 × 107 psi) of Aluminum Alloys. Note that the typical yielding stress of Aluminum Alloys can range from 4061 to 7.614 × 104 psi. The purpose of this page is to give a rough estimation of the load-bearing capacity of this particular beam, rather than a guideline for designing actual building structures. Please check your local building codes for regulatory requirements.
Note: The weight of the beam itself is not included in the calculation.

 Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 2.03 6.51 × 10-5 13.0 3.00 9.61 × 10-5 19.2 4.00 1.28 × 10-4 25.6 5.00 1.60 × 10-4 32.0 6.00 1.92 × 10-4 38.4 7.00 2.24 × 10-4 44.8 8.00 2.56 × 10-4 51.2 9.00 2.88 × 10-4 57.6 10.0 3.20 × 10-4 64.0 20.0 6.41 × 10-4 128 30.0 9.61 × 10-4 192 40.0 0.00128 256 50.0 0.00160 320 60.0 0.00192 384 70.0 0.00224 448 80.0 0.00256 512 90.0 0.00288 576 100 0.00320 640 200 0.00641 1280 300 0.00961 1920 400 0.0128 2560 500 0.0160 3200 600 0.0192 3840 700 0.0224 4480 800 0.0256 5120 900 0.0288 5760 1000 0.0320 6400 2000 0.0641 1.28 × 104 3000 0.0961 1.92 × 104 4000 0.128 2.56 × 104 5000 0.160 3.20 × 104 6000 0.192 3.84 × 104 7000 0.224 4.48 × 104 8000 0.256 5.12 × 104 9000 0.288 5.76 × 104 1.00 × 104 0.320 6.40 × 104 1.19 × 104 0.381 7.61 × 104
 Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 2.03 5.02 × 10-4 36.1 3.00 7.42 × 10-4 53.4 4.00 9.89 × 10-4 71.1 5.00 0.00124 88.9 6.00 0.00148 107 7.00 0.00173 124 8.00 0.00198 142 9.00 0.00223 160 10.0 0.00247 178 20.0 0.00495 356 30.0 0.00742 534 40.0 0.00989 711 50.0 0.0124 889 60.0 0.0148 1070 70.0 0.0173 1240 80.0 0.0198 1420 90.0 0.0223 1600 100 0.0247 1780 200 0.0495 3560 300 0.0742 5340 400 0.0989 7110 500 0.124 8890 600 0.148 1.07 × 104 700 0.173 1.24 × 104 800 0.198 1.42 × 104 900 0.223 1.60 × 104 1000 0.247 1.78 × 104 2000 0.495 3.56 × 104 3000 0.742 5.34 × 104 4000 0.989 7.11 × 104 4280 1.06 7.61 × 104
 Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 2.03 0.00803 144 3.00 0.0119 213 4.00 0.0158 285 5.00 0.0198 356 6.00 0.0237 427 7.00 0.0277 498 8.00 0.0317 569 9.00 0.0356 640 10.0 0.0396 711 20.0 0.0791 1420 30.0 0.119 2130 40.0 0.158 2850 50.0 0.198 3560 60.0 0.237 4270 70.0 0.277 4980 80.0 0.317 5690 90.0 0.356 6400 100 0.396 7110 200 0.791 1.42 × 104 300 1.19 2.13 × 104 400 1.58 2.85 × 104 500 1.98 3.56 × 104 600 2.37 4.27 × 104 700 2.77 4.98 × 104 758 3.00 5.39 × 104
 Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 2.03 0.0407 325 3.00 0.0601 480 4.00 0.0801 640 5.00 0.100 800 6.00 0.120 960 7.00 0.140 1120 8.00 0.160 1280 9.00 0.180 1440 10.0 0.200 1600 20.0 0.401 3200 30.0 0.601 4800 40.0 0.801 6400 50.0 1.00 8000 60.0 1.20 9600 70.0 1.40 1.12 × 104 80.0 1.60 1.28 × 104 90.0 1.80 1.44 × 104 100 2.00 1.60 × 104 150 3.00 2.40 × 104
 Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 2.03 0.129 578 3.00 0.190 854 4.00 0.253 1140 5.00 0.317 1420 6.00 0.380 1710 7.00 0.443 1990 8.00 0.506 2280 9.00 0.570 2560 10.0 0.633 2850 20.0 1.27 5690 30.0 1.90 8540 40.0 2.53 1.14 × 104 47.4 3.00 1.35 × 104
 Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 2.03 0.314 903 3.00 0.464 1330 4.00 0.618 1780 5.00 0.773 2220 6.00 0.927 2670 7.00 1.08 3110 8.00 1.24 3560 9.00 1.39 4000 10.0 1.55 4450 19.4 3.00 8630
 Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 2.03 0.651 1300 3.00 0.961 1920 4.00 1.28 2560 5.00 1.60 3200 6.00 1.92 3840 7.00 2.24 4480 8.00 2.56 5120 9.00 2.88 5760 9.36 3.00 5990
 Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 2.03 2.06 2310 2.96 3.00 3370
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